/Engine/Plugins/Animation/MLDeformer/NeuralMorphModel/Source/NeuralMorphModelEditor/Public/NeuralMorphEditorModel.h
Draw the mask for a given item. An item can be a bone, curve or anything else that has a mask.
void DebugDrawItemMask ( [FPrimitiveDrawInterface](API\Runtime\Engine\FPrimitiveDrawInterface) * PDI, int32 MaskItemIndex, const FVector & DrawOffset )